想要设计一个交通工具类Vehicle，并且包含以下的内容，请问该怎么实现？

Question

设计一个交通工具类Vehicle，包含的数据成员有车轮个数wheels和车重weight。以及带有这两个参数的构造方法，具有Run方法，Run中方法输出running字样。小车类Car是它的子类，其中增加了数据成员车载人数passenger_load。Car类中有带参数的构造方法，重写Run方法：输出Car is running。并重写ToString()方法：显示car中信息（显示车轮数、车重、车载人数）。最后编写主方法，定义car的对象，并调用Run方法，以及显示car中信息。

Answer 1

使用开发工具为VS2017.针对你问题相关代码如下：using System;namespace ConsoleApp1{&nbsp; &nbsp; class Program&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; static void Main(string[] args)&nbsp; &nbsp; &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Car car = new Car(4,1000,5);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; car.Run();&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Console.WriteLine(car.ToString());&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Console.Read();&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; }&nbsp; &nbsp; /// <summary>&nbsp; &nbsp; /// 交通工具类&nbsp; &nbsp; /// </summary>&nbsp; &nbsp; public class Vehicle&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; /// <summary>&nbsp; &nbsp; &nbsp; &nbsp; /// 车轮&nbsp; &nbsp; &nbsp; &nbsp; /// </summary>&nbsp; &nbsp; &nbsp; &nbsp; public int wheels { get; }&nbsp; &nbsp; &nbsp; &nbsp; /// <summary>&nbsp; &nbsp; &nbsp; &nbsp; /// 车重&nbsp; &nbsp; &nbsp; &nbsp; /// </summary>&nbsp; &nbsp; &nbsp; &nbsp; public int weight { get; }&nbsp; &nbsp; &nbsp; &nbsp; /// <summary>&nbsp; &nbsp; &nbsp; &nbsp; /// 构造方法&nbsp; &nbsp; &nbsp; &nbsp; /// </summary>&nbsp; &nbsp; &nbsp; &nbsp; /// <param name="wheels"></param>&nbsp; &nbsp; &nbsp; &nbsp; /// <param name="weight"></param>&nbsp; &nbsp; &nbsp; &nbsp; public Vehicle(int wheels,int weight)&nbsp; &nbsp; &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; this.weight = weight;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; this.wheels = wheels;&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; public virtual void Run()&nbsp; &nbsp; &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Console.WriteLine("running");&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; }&nbsp; &nbsp; public class Car: Vehicle&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; /// <summary>&nbsp; &nbsp; &nbsp; &nbsp; /// 车载人数&nbsp; &nbsp; &nbsp; &nbsp; /// </summary>&nbsp; &nbsp; &nbsp; &nbsp; public int passenger_load { get; }&nbsp; &nbsp; &nbsp; &nbsp; public Car(int wheels, int weight,int passenger_load) :base(wheels,weight)&nbsp; &nbsp; &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; this.passenger_load = passenger_load;&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; public override void Run()&nbsp; &nbsp; &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Console.WriteLine("Car is running");&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; public override string ToString()&nbsp; &nbsp; &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return $"车轮:{wheels}、车重:{weight}、车载人数:{passenger_load}";&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; }}